“Thomas Jefferson was a deist (as was Madison, and perhaps Washington and Franklin as well). Had he lived after Darwin he would probably have been an atheist.”
In what way is Darwin’s theory contrary to Deism?
Deism was an option prior to Darwin because there was no rational way to explain how everything got here. After Darwin supplied that, the people who would have been deists became atheists instead. As Richard Dawkins says, "Darwin made it possible to be an intellectually fulfilled atheist."